380SEC (126.043) V8-3.8L (116.963) (1982)
FIGURE 2 - CHECK VALVE INSTALLED ENGINE 110.985 (IF OIL COOLER APPLIES)
Vehicles with large oil cooler (Inlet at bottom, outlet at top - 0.7 liter capacity) must have the check valve installed between oil cooler and upper oil line
in order to prevent drainage of oil cooler during oil consumption measurement (Figures 1 & 2).
On vehicles with small oil cooler (Inlet and outlet at bottom - 0.5 liter capacity), the check valve is not required.
FIGURE 3 - CHECK VALVE WITH ELBOW AND CONNECTING LINE
Due to the tight space in some models, the check valve with elbow and connecting line must be installed (Figure 3).
FIGURE 1 - CHECK VALVE INSTALLED, ENGINE 617.912